04-15-2002
Look at the manpage for sort.
Near the bottom it gives good examples of how to sort by column.
sort(1) sort(1)
Print the password file (/etc/passwd) sorted by numeric user ID (the
third colon-separated field):
sort -t: -k 3n,3 /etc/passwd
Print the lines of the presorted file infile, suppressing all but the
first occurrence of lines having the same third field:
sort -mu -k 3,3 infile
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HI ALL,
i have a problem when i do a sort sum with many fields.
Is there a limit for fields?
Do you know a solution?
thanks in advance.
the shell is:
# SORT1
SORT1_rcode=777
if ; then
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ABC 111222333002555 77788
ABC 111222333004555 77788
ABC 111222333001555 77788
ABC 111222333003555 77788
ABC 111222333005555 77788
one is from field1 to field 3 "ABC" and another is on 14 to 16 "002" (based on first... (1 Reply)
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Hi experts,
I am trying sort command with my data but still not getting the expected results.
For example, I have 5 fields data here
c,18:12:45,c,c,c
d,12:34:34,d,d,d
a,13:50:10,a,a,a
b,13:50:50,b,b,b
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Hi I would like to sort a csv file. It has 50 fields and approx 1400000 lines. I want to sort by three columns as follows. Say sort on coulmn 5, if entries are equal sort on column 3 if this is also equal sort on column 6.
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Hey,
I have a file i want to sort. It contains these kind of lines:
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Eg:
John Doe 22 Car
Jane Simpson 4 Headset
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I have a file with contents below
123,502
123,506
123,702
234,101
235,104
456,104
456,100
i want to sort such that i get a unique value in column A, and for those with multiple value in A, i want the lowest value in B.
output should be
123,502
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I have another file with three columns A,B,C as below
123,1,502
123,2,506
123,3,702
234,4,101
235,5,104
456,6,104
456,7,100
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hi,
i'm having a file stg_ff.txt
which contains 10 fields,which contains millions of records
i need to cat the first 10 rows in the file after doing a sorting on the first two fields i n the file.
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regards
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Please advice in this.
Input file
100,vvvt
201,unb
100,sos
301,abc
99,gang
desired output
99,gang
100,vvvt
100,sos
201,unb
301,abc
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Hi
I have a file as below
<field1> <field2> <field3> ... <field_num1> <field_num2>
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I tried this and it doesn't sort on the difference field .. Appreciate your help.
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SORT(1) General Commands Manual SORT(1)
NAME
sort - sort or merge files
SYNOPSIS
sort [ -_________x ] [ +pos1 [ -pos2 ] ] ... [ -o name ] [ -T directory ] [ name ] ...
DESCRIPTION
Sort sorts lines of all the named files together and writes the result on the standard output. The name `-' means the standard input. If
no input files are named, the standard input is sorted.
The default sort key is an entire line. Default ordering is lexicographic by bytes in machine collating sequence. The ordering is
affected globally by the following options, one or more of which may appear.
b Ignore leading blanks (spaces and tabs) in field comparisons.
d `Dictionary' order: only letters, digits and blanks are significant in comparisons.
f Fold upper case letters onto lower case.
i Ignore characters outside the ASCII range 040-0176 in nonnumeric comparisons.
n An initial numeric string, consisting of optional blanks, optional minus sign, and zero or more digits with optional decimal point, is
sorted by arithmetic value. Option n implies option b.
r Reverse the sense of comparisons.
tx `Tab character' separating fields is x.
The notation +pos1 -pos2 restricts a sort key to a field beginning at pos1 and ending just before pos2. Pos1 and pos2 each have the form
m.n, optionally followed by one or more of the flags bdfinr, where m tells a number of fields to skip from the beginning of the line and n
tells a number of characters to skip further. If any flags are present they override all the global ordering options for this key. If the
b option is in effect n is counted from the first nonblank in the field; b is attached independently to pos2. A missing .n means .0; a
missing -pos2 means the end of the line. Under the -tx option, fields are strings separated by x; otherwise fields are nonempty nonblank
strings separated by blanks.
When there are multiple sort keys, later keys are compared only after all earlier keys compare equal. Lines that otherwise compare equal
are ordered with all bytes significant.
These option arguments are also understood:
c Check that the input file is sorted according to the ordering rules; give no output unless the file is out of sort.
m Merge only, the input files are already sorted.
o The next argument is the name of an output file to use instead of the standard output. This file may be the same as one of the
inputs.
T The next argument is the name of a directory in which temporary files should be made.
u Suppress all but one in each set of equal lines. Ignored bytes and bytes outside keys do not participate in this comparison.
Examples. Print in alphabetical order all the unique spellings in a list of words. Capitalized words differ from uncapitalized.
sort -u +0f +0 list
Print the password file (passwd(5)) sorted by user id number (the 3rd colon-separated field).
sort -t: +2n /etc/passwd
Print the first instance of each month in an already sorted file of (month day) entries. The options -um with just one input file make the
choice of a unique representative from a set of equal lines predictable.
sort -um +0 -1 dates
FILES
/usr/tmp/stm*, /tmp/*: first and second tries for temporary files
SEE ALSO
uniq(1), comm(1), rev(1), join(1)
DIAGNOSTICS
Comments and exits with nonzero status for various trouble conditions and for disorder discovered under option -c.
BUGS
Very long lines are silently truncated.
SORT(1)